<template>
  <router-view v-slot="{ Component }">
    <keep-alive>
      <component :is="Component" />
    </keep-alive>
  </router-view>
</template>
<style>
  .jian20 {
    position: relative;
  }
  .jian20::after {
    content: '';
    position: absolute;
    background-image: url(https://p2.ssl.qhimg.com/t01cdb0f2818fcdaa7d.png);
    background-size: cover;
    width: 10.8vw;
    height: 10vw;
    top: 2vw;
    right: 2vw;
  }
</style>
